/* ========== base.css - 深色科技风公共样式 ==========
 * 参考 falao_claim_frontend:多层渐变背景 + 网格线 + 玻璃态卡片
 * 依赖 tokens.css 的 CSS 变量
 */

/* === CSS Reset === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: var(--font-family);
}

/* === Body 深色渐变背景 + 网格线 === */
body {
    min-height: 100vh;
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
    background:
        radial-gradient(circle at 12% 7%, rgba(24, 225, 255, .23), transparent 28%),
        radial-gradient(circle at 88% 2%, rgba(22, 119, 255, .23), transparent 30%),
        radial-gradient(circle at 52% 100%, rgba(246, 200, 95, .08), transparent 32%),
        linear-gradient(135deg, #030916 0%, #061426 52%, #0d213d 100%);
    background-attachment: fixed;
}

/* 网格线背景层 */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: -1;
    background-image:
        linear-gradient(rgba(255, 255, 255, .035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, .035) 1px, transparent 1px);
    background-size: 34px 34px;
    mask-image: linear-gradient(to bottom, rgba(0, 0, 0, .95), transparent 90%);
}

/* === 主布局 === */
.app-container {
    display: flex;
    min-height: 100vh;
    flex-direction: column;
}

.main-content {
    display: flex;
    flex: 1;
}

/* === 顶部导航 topbar(玻璃态) === */
.site-header,
header {
    background: var(--card);
    backdrop-filter: blur(18px);
    border: 1px solid var(--line);
    border-radius: 16px;
    box-shadow: var(--shadow);
    padding: var(--space-2) var(--space-4);
    margin: var(--space-3) auto;
    width: calc(100% - 24px);
    max-width: 1480px;
    z-index: 100;
    position: sticky;
    top: 0;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-3);
    min-height: 40px;
}

/* === 品牌 Logo === */
.logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    color: var(--text);
    text-decoration: none;
    flex-shrink: 0;
    min-width: 0;
}

.logo > div {
    min-width: 0;
}

.logo h1 {
    white-space: nowrap;
    font-size: var(--font-base);
    margin: 0;
    line-height: 1.2;
}

.logo .logo-mark {
    width: 32px;
    height: 32px;
    border-radius: 10px;
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, var(--cyan), var(--blue));
    color: #001a33;
    font-weight: 900;
    font-size: var(--font-base);
    box-shadow: 0 0 12px rgba(24, 225, 255, .25);
}

.logo i {
    font-size: var(--font-base);
    color: var(--cyan);
}

.header-page-title {
    font-size: 11px;
    color: var(--cyan);
    font-weight: 500;
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 160px;
}
.header-page-title i {
    font-size: var(--font-sm);
    margin-right: 2px;
}

.nav-toggle {
    display: none;
    background: none;
    border: 1px solid rgba(255,255,255,.15);
    border-radius: 8px;
    color: var(--text);
    font-size: 16px;
    padding: 6px 10px;
    cursor: pointer;
}

@media (max-width: 720px) {
    .nav-toggle {
        display: block;
        position: absolute;
        right: 16px;
        top: 12px;
    }
    .main-nav {
        display: none;
        width: 100%;
        margin-top: var(--space-2);
    }
    .main-nav.open {
        display: block;
    }
    .main-nav ul {
        flex-direction: column;
        gap: 2px;
    }
    .main-nav > ul > li {
        margin-bottom: 0;
    }
    .main-nav ul li a {
        display: block;
        padding: var(--space-2) 10px;
        font-size: var(--font-sm);
        border-radius: 8px;
    }
    .main-nav ul li a:hover,
    .main-nav ul li a.active {
        background: rgba(24,225,255,.08);
    }
    .nav-user {
        margin-left: 0;
        padding-left: 0;
        width: 100%;
        justify-content: flex-end;
        border-top: 1px solid rgba(255,255,255,.08);
        padding-top: 6px;
        margin-top: 2px;
    }
}

.logo h1 {
    font-size: 15px;
    font-weight: 700;
    white-space: nowrap;
    letter-spacing: -.3px;
}

.logo p {
    color: var(--muted);
    font-size: 11px;
    margin-top: 2px;
}

/* === 主导航(极简,无下拉) === */
.main-nav ul {
    display: flex;
    list-style: none;
    align-items: center;
    gap: var(--space-1);
    flex-wrap: wrap;
}

.main-nav > ul > li {
    position: relative;
}

.main-nav ul li a {
    color: var(--text);
    text-decoration: none;
    padding: 6px 10px;
    border-radius: 8px;
    transition: all var(--transition-fast);
    font-size: var(--font-sm);
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    white-space: nowrap;
    border: 1px solid transparent;
    position: relative;
}

.main-nav ul li a::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 2px;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--cyan), var(--blue));
    border-radius: 2px;
    transition: width var(--transition-fast), left var(--transition-fast);
}

.main-nav ul li a:hover::after,
.main-nav ul li a.active::after {
    width: 70%;
    left: 15%;
}

.main-nav ul li a:hover {
    background: rgba(255, 255, 255, .08);
    border-color: rgba(255, 255, 255, .1);
    color: var(--text);
    transform: translateY(-1px);
}

.main-nav ul li a.active {
    background: rgba(24, 225, 255, .15);
    border-color: rgba(24, 225, 255, .34);
    color: var(--text-accent);
    box-shadow: 0 0 18px rgba(24, 225, 255, .11);
}

/* === 用户区 === */
.nav-user {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding-left: var(--space-3);
}

/* 用户头像 */
.user-avatar-wrapper {
    position: relative;
    cursor: pointer;
}

.user-avatar,
.user-avatar-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid rgba(24, 225, 255, .3);
    transition: all var(--transition-fast);
}

.user-avatar-wrapper:hover .user-avatar,
.user-avatar-wrapper:hover .user-avatar-icon {
    border-color: var(--text-accent);
    transform: scale(1.05);
}

/* 下拉菜单 */
.user-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    width: 220px;
    background: var(--bg-card);
    border: 1px solid rgba(24, 225, 255, .2);
    border-radius: var(--radius-md);
    box-shadow: 0 8px 32px rgba(0, 0, 0, .3);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all var(--transition-fast);
    z-index: 1000;
}

.user-avatar-wrapper:hover .user-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-header {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4);
}

.dropdown-avatar,
.dropdown-avatar-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid rgba(24, 225, 255, .3);
}

.dropdown-info {
    display: flex;
    flex-direction: column;
}

.dropdown-username {
    font-weight: 600;
    color: var(--text-primary);
}

.dropdown-role {
    font-size: var(--font-xs);
    color: var(--text-muted);
}

.dropdown-divider {
    height: 1px;
    background: rgba(24, 225, 255, .1);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    color: var(--text-secondary);
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.dropdown-item:hover {
    background: rgba(24, 225, 255, .1);
    color: var(--text-accent);
}

.dropdown-item i {
    width: 16px;
    text-align: center;
}

.fa-xs {
    font-size: 0.75em;
}

/* === 侧边栏 === */
.sidebar {
    width: 320px;
    background: var(--card);
    backdrop-filter: blur(18px);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    overflow-y: auto;
    flex-shrink: 0;
    margin: 0 18px 18px;
    position: sticky;
    top: 90px;
    max-height: calc(100vh - 110px);
}

.content-area {
    flex: 1;
    padding: 0 18px 18px;
    overflow-y: auto;
}

/* === 配置面板 === */
.config-panel {
    padding: var(--space-4);
    border-bottom: 1px solid var(--line);
}

.panel-title {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: var(--space-3);
    color: var(--cyan);
    display: flex;
    align-items: center;
}

.panel-title i {
    margin-right: var(--space-2);
}

/* === 表单元素 === */
.form-group {
    margin-bottom: var(--space-3);
}

label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    font-size: var(--font-sm);
    color: var(--text);
}

input,
select,
textarea {
    width: 100%;
    height: 42px;
    padding: 0 14px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    outline: none;
    font-size: var(--font-sm);
    color: var(--text);
    background: rgba(3, 9, 22, .48);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

textarea {
    height: auto;
    padding: 10px 14px;
    min-height: 80px;
    resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
    border-color: rgba(24, 225, 255, .6);
    box-shadow: 0 0 0 4px rgba(24, 225, 255, .08);
}

input::placeholder,
textarea::placeholder {
    color: var(--muted);
    opacity: .6;
}

button {
    border: none;
    cursor: pointer;
    border-radius: var(--radius-sm);
    padding: 10px 16px;
    color: var(--text);
    font-weight: 700;
    transition: .2s;
    white-space: nowrap;
    background: linear-gradient(135deg, var(--blue), var(--cyan));
    color: #001a33;
    box-shadow: 0 8px 24px rgba(24, 225, 255, .18);
}

button:hover {
    transform: translateY(-1px);
    filter: brightness(1.08);
}

button.secondary {
    background: rgba(255, 255, 255, .08);
    border: 1px solid var(--line);
    color: var(--text);
    box-shadow: none;
}

button.secondary:hover {
    background: rgba(255, 255, 255, .12);
}

.action-buttons {
    display: flex;
    justify-content: space-between;
    gap: var(--space-2);
    margin-top: var(--space-3);
}

/* === 侧边导航 === */
.sidebar-nav {
    padding: var(--space-3) 0;
}

.sidebar-nav-item {
    padding: var(--space-2) var(--space-3);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    color: var(--text);
    font-size: var(--font-sm);
}

.sidebar-nav-item:hover {
    background: rgba(24, 225, 255, .06);
    color: var(--cyan);
}

.sidebar-nav-item.active {
    background: rgba(24, 225, 255, .12);
    border-left: 3px solid var(--cyan);
    color: var(--text-accent);
}

.sidebar-nav-item i {
    margin-right: 10px;
    color: var(--muted);
    width: 20px;
    text-align: center;
}

.sidebar-nav-item.active i {
    color: var(--cyan);
}

/* === 卡片(玻璃态) === */
.card {
    background: var(--card);
    backdrop-filter: blur(18px);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    margin-bottom: 18px;
    overflow: hidden;
}

.card-header {
    padding: 14px 20px;
    border-bottom: 1px solid var(--line);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255, 255, 255, .03);
}

.card-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--cyan);
}

.card-tools {
    display: flex;
    gap: var(--space-2);
}

.card-body {
    padding: var(--space-5);
}

/* === 标签页 === */
.tabs {
    display: flex;
    gap: var(--space-2);
    flex-wrap: wrap;
    margin-bottom: var(--space-3);
    border-bottom: none;
    background: transparent;
    padding: 0;
}

.tab {
    padding: 9px 14px;
    cursor: pointer;
    font-weight: 500;
    transition: all var(--transition-fast);
    font-size: var(--font-sm);
    border: 1px solid rgba(255, 255, 255, .13);
    background: rgba(255, 255, 255, .07);
    border-radius: 999px;
    color: var(--text);
}

.tab.active {
    background: rgba(24, 225, 255, .15);
    border-color: rgba(24, 225, 255, .34);
    color: #c8fbff;
    box-shadow: 0 0 18px rgba(24, 225, 255, .11);
}

.tab:hover:not(.active) {
    background: rgba(255, 255, 255, .1);
}

/* === 统计卡片 === */
.stats-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 14px;
    margin-bottom: 18px;
}

.stat-card {
    padding: 18px;
    border-radius: 22px;
    border: 1px solid var(--line);
    background: linear-gradient(180deg, rgba(255, 255, 255, .11), rgba(255, 255, 255, .045));
    position: relative;
    overflow: hidden;
    min-height: 100px;
}

.stat-card::after {
    content: "";
    position: absolute;
    right: -42px;
    bottom: -52px;
    width: 115px;
    height: 115px;
    border-radius: 50%;
    background: rgba(24, 225, 255, .08);
}

.stat-title {
    font-size: var(--font-sm);
    color: var(--muted);
    margin-bottom: 10px;
    display: block;
}

.stat-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--text);
    letter-spacing: -.5px;
    display: block;
}

.stat-detail {
    font-size: var(--font-sm);
    color: var(--cyan);
    margin-top: var(--space-2);
    display: block;
}

/* === 图表容器 === */
.chart-container {
    height: 400px;
    margin: 18px 0;
}

/* === 数据表格 === */
.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th,
.data-table td {
    padding: var(--space-3);
    text-align: left;
    border-bottom: 1px solid var(--line);
    font-size: var(--font-sm);
    white-space: nowrap;
}

.data-table th {
    color: var(--text-dim);
    font-weight: 600;
    background: rgba(5, 18, 35, .96);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
}

.data-table td {
    color: var(--text-bright);
}

.data-table tr:hover td {
    background: rgba(24, 225, 255, .045);
}

.data-table td.positive {
    color: var(--green);
}

.data-table td.negative {
    color: var(--red);
}

/* === 分页 === */
.pagination {
    display: flex;
    justify-content: center;
    margin-top: 18px;
    gap: var(--space-1);
}

.pagination button {
    margin: 0 2px;
    background: rgba(255, 255, 255, .08);
    color: var(--text);
    border: 1px solid var(--line);
    box-shadow: none;
    padding: var(--space-2) var(--space-3);
}

.pagination button.active {
    background: rgba(24, 225, 255, .15);
    border-color: rgba(24, 225, 255, .34);
    color: var(--text-accent);
}

/* === 分析摘要 === */
.analysis-summary {
    background: rgba(24, 225, 255, .07);
    border: 1px solid rgba(24, 225, 255, .18);
    border-radius: var(--radius-md);
    padding: var(--space-5);
    margin: var(--space-3) 0;
    color: var(--text-accent);
    font-size: var(--font-sm);
    line-height: 1.65;
}

/* === 加载动画 === */
.loading {
    text-align: center;
    padding: 32px 0;
    color: var(--muted);
}

.loading-spinner {
    display: inline-block;
    width: 40px;
    height: 40px;
    border: 4px solid rgba(255, 255, 255, .1);
    border-top: 4px solid var(--cyan);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* === 页面标题区 === */
.page-header {
    display: none;
}

.breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-1);
    font-size: 11px;
    color: var(--muted);
    margin-bottom: var(--space-2);
}

.breadcrumb a {
    color: var(--muted);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.breadcrumb a:hover {
    color: var(--cyan);
}

.breadcrumb .separator {
    font-size: 9px;
    opacity: .5;
    margin: 0 4px;
}

.breadcrumb .current {
    color: var(--text);
    font-weight: 500;
}

.page-title {
    font-size: var(--font-xl);
    font-weight: 700;
    color: var(--text);
    margin: 0;
    display: flex;
    align-items: center;
    gap: 10px;
    letter-spacing: -.5px;
}

.page-title i {
    color: var(--cyan);
}

.page-subtitle {
    font-size: var(--font-sm);
    color: var(--muted);
    margin-top: 6px;
    margin-bottom: 0;
}

/* === 页脚 === */
footer {
    background: var(--card);
    backdrop-filter: blur(18px);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    color: var(--text);
    padding: var(--space-5) var(--space-6) var(--space-4);
    margin: 18px;
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-4);
    max-width: 1400px;
    margin: 0 auto var(--space-3);
}

.footer-section {
    display: flex;
    flex-direction: column;
}

.footer-title {
    font-size: 15px;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--text);
}

.footer-title i {
    color: var(--cyan);
}

.footer-desc {
    font-size: var(--font-sm);
    color: var(--muted);
    line-height: 1.6;
}

.footer-subtitle {
    font-size: var(--font-sm);
    color: var(--muted);
    margin-bottom: var(--space-2);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .5px;
}

.footer-nav {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
}

.footer-nav a {
    color: var(--text);
    text-decoration: none;
    font-size: var(--font-sm);
    transition: all var(--transition-fast);
    padding: 6px 12px;
    border-radius: 8px;
    border: 1px solid transparent;
}

.footer-nav a:hover {
    color: var(--cyan);
    background: rgba(24, 225, 255, .08);
    border-color: rgba(24, 225, 255, .2);
    transform: translateY(-1px);
}

.footer-copyright {
    text-align: center;
    padding-top: var(--space-4);
    border-top: 1px solid var(--line);
    font-size: var(--font-sm);
    color: var(--muted);
}

/* === 滚动条 === */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, .2);
}

::-webkit-scrollbar-thumb {
    background: rgba(24, 225, 255, .3);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(24, 225, 255, .5);
}

/* === 通用工具类 === */
.container {
    max-width: 1480px;
    margin: 0 auto;
    padding: 0 18px;
}

.text-center { text-align: center; }
.text-muted { color: var(--muted); }
.hidden { display: none !important; }

/* === 响应式 === */
@media (max-width: 1200px) {
    .sidebar {
        width: 280px;
    }
}

@media (max-width: 992px) {
    .sidebar {
        width: 240px;
    }
    .stats-cards {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    }
}

@media (max-width: 768px) {
    .main-content {
        flex-direction: column;
    }
    .sidebar {
        width: 100%;
        max-height: none;
        position: relative;
        top: 0;
        margin: 0 0 18px;
    }
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    .footer-nav {
        justify-content: center;
    }
    .header-content {
        flex-direction: column;
        align-items: flex-start;
    }
}